2 External USB 3.0 Port and 19 Pin Internal Header PCIe 2.0 x1 4 Port USB 3.0 SD-PEX20122

Based on VLI VL80x Chipset Requires 4-Pin Molex Power Connector. Internal HDD Power Connector for Supplying Extra +5V Power to the USB Ports Supports All USB Compliant Peripherals Full Support of Real Time Dynamic Insertion and Removal of USB Devices Compliant with PCI Express Base Specification 2.0. Backwards Compatible to PCI-Express 1.0a with Data Transfer Rate Up to 2.5Gbps PCI-Express 2.0 1-Lane (x1) Interface with Data Transfer Rate Up to 5Gbps Compliant with Intel's Extensible Host Controller Interface (xHCI) Specification Revision 0.96 Super speed USB 3.0 PCI-Express Card features 2 external USB 3.0 ports and one internal 20-pin USB 3.0 header which can be used simultaneously. VLI VL80x Chipset